Abstract The rapid development of internet things (IoT) urgently needs edge miniaturized computing devices with high efficiency and low-power consumption. In-sensor has emerged as a promising technology to enable in-situ data processing within the sensor array. Here, we report an optoelectronic array for in-sensor by integrating photodiodes (PDs) resistive random-access memories (RRAMs). PD-RRAM unit cell exhibits reconfigurable output photo-responsivity programming RRAMs into different...

The energy management strategy of passenger vehicles that adopts the hybrid form fuel cell, battery and supercapacitor was complicated. Traditional power following-logic threshold filtering could better use directly output by cell(FC) reduce loss charge discharge. In some ranges, produced cell lagged behind demand power. response to this problem, is optimized based on dynamic allocation. According parameters vehicle, Simulink/Powertrain used build a system model verify effectiveness current...

Compaction quality is directly related to the structure and seepage stability of a rockfill dam. To timely accurately test compaction material, four real‐time indexes were chosen characterize soil degree based on analysis roller vibratory acceleration, including acceleration peak value ( p ), root mean square rms crest factor (CF), meter (CMV). determine which these most appropriate, two‐part field experiment was conducted using in different filling zones dam body. Data rolling parameters,...

The pier-type repair equipment for bridges is a crucial branch of bridge emergency repair. However, the existing pier predominantly utilizes rod systems, which require substantial assembly work, hindering rapid restoration damaged bridges. Modular steel structure buildings, as highly integrated form prefabricated construction, can play significant role in rescue operations. Based on modular architectural design concept, this paper proposes new type joint that facilitates and connection...

Internal erosion at soil–structure interfaces is a dangerous failure pattern in earth-fill water-retaining structures. However, existing studies concentrate on the investigations of internal by assuming homogeneous materials, while ignoring vulnerable soil–structure-interface realistic cases. Therefore, orthogonal and single-factor tests are carried out with newly designed apparatus to investigate critical hydraulic gradient interfaces. The main conclusions can be draw as follows: (1) impact...

One of the main causes for excessive deformation within a tunnel is due to instability soil or soft rock ahead excavation face. Fiberglass bolts have been shown be useful advance reinforcement method In this paper, an improved ADECO-RS (Analysis controlled in and soils) had proposed mountain tunnels, terms partial (mainly upper bench) face also bench method. Strain gauges were used test micro-strain fiberglass bolt investigate how axial force varied during excavation. addition, combined with...

The compaction quality is directly related to the deformation and stability of rockfill dam. Measuring test pit volume efficiently accurately most critical step during inspection. A new method for calculating based on point cloud data proposed. An auxiliary device that can change scanning distance angle handheld 3D laser scanner developed collect initial cloud. segmentation including surface outside divide into two parts according order number point, after slicing sorting clouds, which key...

The erosion of soil particles within a dam, by water that seeps through the is one most common causes failure in levees and earth dams. This phenomenon can be more complex dangerous when interacting with internally affiliated structures, such as water-supply culverts, due to potential development seepage channels weak interfaces. However, this particular case has not been thoroughly investigated. In paper, therefore, apparatus designed simulate investigate progressive mechanism interfacial...

In recent years, as the frequency of debris flow outbreak in strong earthquake areas has increased and scale been expanding, order to explore erosion characteristics flow, a lateral flume model experimental device designed, 18 groups incomplete orthogonal experiments have carried out, with unit weight 1.6~2.0 g/cm3, content fine particles accumulation 0~28.82%, longitudinal slope gradient gully 8°~20° variables. The results show that width, depth, volume decrease increase fluid bulk density...

Object classification is important information for different transportation areas. This research developed a probabilistic neural network (PNN) classifier object using roadside Light Detection and Ranging (LiDAR). The objective was to classify the road user on urban into one of four classes: Pedestrian, bicycle, passenger car, truck. Five features calculated from point cloud generated LiDAR were selected represent difference between classes. A total 2736 records (2062 training, 674 testing)...

A high-Q mid-infrared Tamm plasmon (TP) absorber using MgF2 and Ge aperiodic tandem films is designed by the genetic algorithm fabricated electron beam evaporation magnetron sputtering. Such a design circumvents need for distributed Bragg reflector grating, thickness of individual much smaller than quarter wavelength in (λ/4n). The TP exhibits high sharp absorption peak at 2.73 μm with quality factor (Q) 144, while simulated counterpart has 2.72 Q 155. profiles an electromagnetic field are...

In recent years, debris flows have frequently erupted in the narrow-steep gully of earthquake-hit Wenchuan region, displaying high flow velocities and powerful scouring abilities. However, few studies been conducted. A model experiment simulated process a flume, which several important physical parameters, including density (ρ), flume slope (θ), grain size sediment (D), were varied to investigate their influences on erodible strength. The experimental composed 50 L water grains, scoured 2.3...

Vibration from blasting operations exert negative effects on the comfort of nearby buildings (structures) resulting in dissatisfaction and even complaints residents. This problem impacts both activities social stability. Therefore, establishing a method for reasonably evaluating vibration (BV) standard can significantly reduce civil disputes caused by construction involving blasting. paper systematically reviewed factors influencing BV as well current evaluation indexes criteria, analyzed...

The debris flow disasters in the Wenchuan meizoseismal area are dominantly triggered by gully-type flow. Research on its classification method can be of great theoretical value and practical significance for developing targeted prevention measures. current empirical has some disadvantages, such as inconsistent discrimination criteria poor practicability. In this paper, order to overcome these drawbacks, topography, rainfall, source characteristics data 176 flows “5.12” since 2008 were...

This paper presents a numerical simulation method for the brittle rock failure process under compression, by combining finite element with micromechanics damage theory. When considering as homogeneous material, initial elastic constant of each computational is same, but microcrack distribution in follows statistical distribution. Consequently, loading process, propagation different, leading to an inhomogeneous changes constant. Under increased loading, this will ultimately be reflected...